Actually it is the very inaccuracies reported by those numbers that are a large part of the debate. Taken at face value, they point to warming to a very small degree. Corrected for placement, there has been no warming at all.
I think we all understand that the "official" records have been quite roughly tampered with to produce a desired result. That tampering is under investigation now.

Try to keep an open mind to open debate, because nothing has been settled.

It is true that the Earth has been both cooler and warmer in recent history(within the last 1,000 years) and that those changes are not fully understood, it is unlikely that the simplistic theory that CO2 is the primary causative factor will be supported. I suggest that the causes are far more complex and very likely beyond our control.

By the way, can you tell us what the proper temperature is for Earth?